EP4297297A4 - Coherent detection method, apparatus, and system - Google Patents

Coherent detection method, apparatus, and system

Info

Publication number
EP4297297A4
EP4297297A4 EP21926370.4A EP21926370A EP4297297A4 EP 4297297 A4 EP4297297 A4 EP 4297297A4 EP 21926370 A EP21926370 A EP 21926370A EP 4297297 A4 EP4297297 A4 EP 4297297A4
Authority
EP
European Patent Office
Prior art keywords
detection method
coherent detection
coherent
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21926370.4A
Other languages
German (de)
French (fr)
Other versions
EP4297297A1 (en
Inventor
Jingsong Bei
Zhengxuan Li
Yiming Zhong
Bo Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of EP4297297A1 publication Critical patent/EP4297297A1/en
Publication of EP4297297A4 publication Critical patent/EP4297297A4/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/613—Coherent receivers including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5561—Digital phase modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/615—Arrangements affecting the optical part of the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/615—Arrangements affecting the optical part of the receiver
    • H04B10/6151—Arrangements affecting the optical part of the receiver comprising a polarization controller at the receiver's input stage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6163—Compensation of non-linear effects in the fiber optic link, e.g. self-phase modulation [SPM], cross-phase modulation [XPM], four wave mixing [FWM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
EP21926370.4A 2021-02-18 2021-12-08 Coherent detection method, apparatus, and system Pending EP4297297A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110187937.4A CN114978340A (en) 2021-02-18 2021-02-18 Coherent detection method, device and system
PCT/CN2021/136544 WO2022174656A1 (en) 2021-02-18 2021-12-08 Coherent detection method, apparatus, and system

Publications (2)

Publication Number Publication Date
EP4297297A1 EP4297297A1 (en) 2023-12-27
EP4297297A4 true EP4297297A4 (en) 2024-08-14

Family

ID=82931974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21926370.4A Pending EP4297297A4 (en) 2021-02-18 2021-12-08 Coherent detection method, apparatus, and system

Country Status (4)

Country Link
US (1) US20240187106A1 (en)
EP (1) EP4297297A4 (en)
CN (1) CN114978340A (en)
WO (1) WO2022174656A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090047030A1 (en) * 2007-08-16 2009-02-19 Fujitsu Limited Coherent light receiving system
EP3826202B1 (en) * 2019-11-06 2023-09-06 Google LLC Coherent receiver with mixed signal processing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6451734A (en) * 1987-08-21 1989-02-28 Fujitsu Ltd Bidirectional coherent light communication system
WO2016042535A1 (en) * 2014-09-19 2016-03-24 Telefonaktiebolaget L M Ericsson (Publ) Optical transmitters and receivers using polarization multiplexing
CN105530054B (en) * 2015-12-14 2018-03-20 武汉邮电科学研究院 Intensity modulated related detection system and method based on ASK and DBPSK

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090047030A1 (en) * 2007-08-16 2009-02-19 Fujitsu Limited Coherent light receiving system
EP3826202B1 (en) * 2019-11-06 2023-09-06 Google LLC Coherent receiver with mixed signal processing

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MOHAMMAD JAKIR HOSSAIN ET AL: "An efficient scheme for receiver-side quadrature imbalance compensation in coherent optical receivers", FIBER OPTICS AND PHOTONICS (PHOTONICS), 2012 INTERNATIONAL CONFERENCE ON, IEEE, 9 December 2012 (2012-12-09), pages 1 - 3, XP032429894, ISBN: 978-1-4673-4718-1, DOI: 10.1364/PHOTONICS.2012.WPO.21 *
See also references of WO2022174656A1 *
SUN HYOK CHANG ET AL: "Compensation of front-end IQ-mismatch in coherent optical receiver", OPTICAL FIBER TECHNOLOGY, vol. 17, no. 2, 11 January 2011 (2011-01-11), pages 124 - 127, XP028154858, ISSN: 1068-5200, [retrieved on 20110111], DOI: 10.1016/J.YOFTE.2011.01.003 *
YVES PAINCHAUD ET AL: "Performance of balanced detection in a coherent receiver", OPTICS EXPRESS, vol. 17, no. 5, 2 March 2009 (2009-03-02), pages 3659 - 3672, XP055738619, DOI: 10.1364/OE.17.003659 *

Also Published As

Publication number Publication date
US20240187106A1 (en) 2024-06-06
CN114978340A (en) 2022-08-30
EP4297297A1 (en) 2023-12-27
WO2022174656A1 (en) 2022-08-25

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